Surgery – Instruments – Cutting – puncturing or piercing
Patent
1987-02-18
1993-06-08
Shay, David B.
Surgery
Instruments
Cutting, puncturing or piercing
606172, A61B 1720
Patent
active
052174786
ABSTRACT:
A motor-driven surgical instrument having particular use in arthroscopic procedures has its drive motor operation controllable entirely from a switch cluster mounted on the instrument handpiece. The switch cluster is curved to substantially follow the circumferential profile of the handpiece and thereby avoid large platforms or projections that would add to the weight and bulk of the handpiece and destroy its balance. The switches in the cluster are arranged to minimize the movement of a surgeon's finger in quickly moving from a speed or direction control switch to an on/off switch. A unique arcuate printed circuit board having a small radius of curvature is employed as part of the switch cluster and is able to withstand the high temperatures to which the handpiece is exposed during sterilization between procedures. Disposable, single-use cutting blades are individually coded to provide a sensible parameter representing the optimum operating speed range of the cutting blade. This parameter is sensed by the handpiece to provide a control signal which both establishes the optimum motor speed range and provides a visible indication of the established range. In this manner the instrument is able to avoid relatively heavy coded adapters employed in the prior art to provide interface between the cutting blade and the handpiece.
REFERENCES:
patent: Re30923 (1982-05-01), Durkee et al.
patent: 1201365 (1916-10-01), Shelton
patent: 1977263 (1934-10-01), Campbell
patent: 2637824 (1953-05-01), Kessel
patent: 2754464 (1956-06-01), Wizenez et al.
patent: 3346958 (1967-10-01), Sinatra et al.
patent: 3427720 (1969-02-01), Berman et al.
patent: 3673357 (1972-06-01), Molchan
patent: 3699294 (1972-10-01), Sudduth
patent: 3734099 (1973-05-01), Bender et al.
patent: 3848336 (1974-11-01), Copeland
patent: 3921298 (1975-11-01), Fattaleh
patent: 3959883 (1976-06-01), Walls et al.
patent: 4066851 (1978-01-01), White et al.
patent: 4066855 (1978-01-01), Zenk
patent: 4104728 (1978-08-01), Kasubuchi
patent: 4128889 (1978-12-01), Ojima et al.
patent: 4216968 (1980-08-01), Yeeda
patent: 4220815 (1980-09-01), Gibson et al.
patent: 4274414 (1981-06-01), Johnson et al.
patent: 4276024 (1981-06-01), Warren
patent: 4320716 (1982-03-01), Haddad
patent: 4320767 (1982-03-01), Villa-Read
patent: 4321441 (1982-03-01), Thornburg
patent: 4360716 (1982-11-01), Fiorella
patent: 4449023 (1984-05-01), Hilhorst et al.
patent: 4470414 (1984-09-01), Imagawa et al.
patent: 4608215 (1986-08-01), Gonczy et al.
patent: 4702738 (1987-10-01), Spencer
patent: 4705038 (1987-11-01), Sjostrom et al.
Dentsphy-Cavitron Litturature: "Powermatic.TM. Ultrasonic dental Unit" 1976.
Linvatec Corporation
Shay David B.
LandOfFree
Arthroscopic surgical instrument drive system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arthroscopic surgical instrument drive system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arthroscopic surgical instrument drive system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1930665